Friction-clutch.



' M BECK;

FRICTICN CLUTCH. l APPLICATICN ULEB MA1. 24, 1913. 1 ,100,048, Patented June 16,1914;

` M. BGK. FRIGTION CLUTCH. APPLIOA'I'IION FILED MAB.; 24, 1913.

2 SHEETS-SHEET 2.

Patented -Jun 16, 1914.

UNITED STATES PATENT, OFFICE. v

MARSHALL BECK, 0F MOLINE, ILLINOIS, ASSIG-NOR T0 THE BORG @c BECK COMPANY,

OF MOLINE, ILLINOIS, A CORPORATION OF ILLINOIS.

FRICTION-CLUTCH.

Specification of Letters Patent.

Patented J une 16, 1914.

Application filed March 24, 1913. Serial No. 756,371.

of Illinois, have invented certain'new and.

useful Improvements in Friction-Clutches, of which the following is a specification.

This invention relates to friction clutches and has for its object broadly to. provide an adjustment or take-up device in a friction clutch, which will permit the wearing surfaces of the clutch to be adjusted relatively to each other desired amounts Without affecting the efficiency of the clutch or the action of its relatively moving parts.

The invention has relation to the subject matter of my companion application, Serial No. 756,370, Iiled March 24, 1913, and presents another form of adjustment or take-up device of novel construction for use in friction clutches. i

A further object of the invention is to provide an adjustment or take-up device vin a friction clutch which may readily be operated without requiring that any of the parts of the clutch be removed.

Additional objects and advantages of the invention will be apparent as it is better understood from the following description taken in connection with the accompanying drawings illustrating a preferred embodiment thereof.

On the drawings z--Figure 1 is a longitu- .diiial sectional view of a clutch embodying my invention; F ig. 2 is an end elevation of y the same with parts broken away; Fig. 3 is a partial transverse sectional view through the clutch; and Fig. 4 is an enlarged detail sectional view of one of the rollers.

Referring to the drawings, 11 designates the driving'shaft and 12 the driven shaft. Upon a collar 13 keyed to the driving shaft 11 at 14 is fastened a fly-wheel 15 by vbolts or other suitable fastening means '16 so that the fly-wheel, collar and shaft rotate as a single unit and together may be termed the drivingeleinent. The shaft 12 is journaled at its end adjacentthc shaft 11 iii a pilot bearing 17 provided at the center of the flywheel 15. Upon the shaft 12 ay friction disk 18 is mounted to move longitudinally of the shaft, and this disk is caused to rotate with the shaft 12 by a spline 19. A clutch casthe fly-wheel by means of bolts 22 and incloses the disk 18. Within the casing 2-1 a thrust ring 23 is mounted to move longitudinally thereof and is held against rotation relatively Ato lthe casi-ng and ily-wheel by means of driving pins 24 threaded into the casing and taking into transverse slots 25 in the periphery of the thrust ring. A friction ring 20 of asbestos or -other suitable material is interposed between the adjacent faces of the {1y-wheel and disk and a similar friction ring is interposed between the adjacent faces of the disk and thrust ring. The face of the thrust ring distant from the disk 18 is formed to provide a plurality of sets of beveled or inclined thrust seats 26 which receive the thrust from the bell cranks be presently described. In the present instance each set consists of three seats located at dierent distances from the `friction disk A1S and arranged in stepped relation. The two seats nearest the disk v18 are preferably formed by cutting away the face of the thrust -iing adjacent the reai" wall of the lcasing and the seat farthest from the disk 18 is a continuation of the main portion vof this face of the thrust ring.

The thrust ring is moved against the friction disk to throw in the clutch by a vset of bell cranks 27 which are pi-votally mounted in lugs 23 `upon a ring 29 provided at 'the rear o'f the casing. rThe ends of the arms `of each of these bell cranks are preferably but not necessarily provided "with the rollers 31 and 32, the roller 3l on the short arm of the ybell crank being adapted to travel outwardly over a` beveled seat 2G of the thrust ring when the bell crankis moved from its normal position about its pivotal connection the thrust member The roller 32 is with the ring 29 to force toward the fly-wheel.

mounted in a suitable groove 33 of a collar 34 which is pressed toward the left, viewing Fig. 1, away from the rear wall of the casing by a spiral expansion spring The collar 34 is mounted upon a clutch throwout sleeve 3G at the end of which within the casiiig is provided an outwardly extending flange 3T which is adapted t0 engage the collar 3ft when the sleeve is moved against the force of the spring 35 toward the right, viewing Fig. 1, by any suitable mechanism to throw out the clutch. rIhis sleeve' is caused to rotate with the casing and with the driving element by a spline 31 slidabl'y connecting it to the rear wall of the casing.

wall of ther casing andfshiftable about its center for maintaining-said bell crank in. position to'engage a desired seat.

4. In a friction clutch, the combination of a driving element, adriven element, a casing fixed to one element and embracing the other element and having an, arcuateslot in its rear Wall, a member disposediwithinjand rol' tatablevwith said casing` and"having a plu.-

rality of thrust seats of varying-depth in'its face adjacent said r"ar wall,l a -bell crank 1 adapted to engage said-seatsto move the member and establish frictional'engagement between the elements, and `n ieans connected to the said bell crank. and` disposedthrough the slot in the rear wall of thel casing for moving the Ibell crank about theaxesof ro- 'tationof the casing *and member topermit the bell crank to engage a desired seat.

5. In a'friction clutch, the combination of;

a driving element, a driven element, a casing fixed to one element and embracing the otherelement and v.having an arcuate slotin its lrear wall5l a 'member mounted within and ro-v4 tatable with said casing and havingla; plurality of thrust seats of varying depthin its face adjacent the rear wall of the easing, a belly crank adapted to ,engage said lthrust seats, and a pivotal mounting yfor said'bell disposed through thesaid yslot in the rearwall of the casing 'adapted to be moved;

lengthwise of the` slot to angularly' adjust the .said bell crankvrelatively to the said f a desired 4thrust seat.-

member and permit the bell 6. V.In a frict'on clutch, the combination of.

a driving element, a driven lementg'ja "casing fixed to one element and embracing the other element and having 4ana;ar'c'l'lj( Y rear wall2 amember mounted within and rotatable with the casin rality of thrust seatso f arying depth in lits face adjacent said .rear-wall 'oflthe casing, .al

bell crank mounted within the. casing and adapted to engage said thrust seats, a mounting for said bell `crank disposed through the said slot and movable Y.len thwise thereof for-.adjusting the said ll crank angularlyA with respect to the' said member to permit said bell crank to en age a desired thrust seat, and means forv loc ng' the said bell crank in adjusted position. l'

7. In a-friction clutch, the combination of megas@ i 'ndv -having a plu va driving element, adriven element, a casing y Xed to one elementand embracing the other element, a member 'mounted within and rotatable with saidncasing and having a pluf rality of sets oi? `thrust'seats in its face adjacent the rear'- wall of the said casing, the seats of eachfo'fsaid sets being of varying depth, a bell;v yanklfoi' each set adapted to engage thejsaids'eats, a ring connected to said bell craifijkfs,4 and angularly adjustable means connected-to said. ring for maintaining the bell cranks Ain position to engage thrust seats of desired depth.

8. In a friction clutch, the combination of a driving element, a driven element2 a casing iixed to one element and embracing the otherY element, a member mounted within the casing and rotatabletherewith and having a plurality of thrust -seats of varying depth connectedby inclined surfaces, a bell crank pivotally mounted within the casing and adapted" to engage said thrust seats, and means v:for moving said bell crank angularly with `respect to the said member from one seat to the next over the inclined wall connecting them.

' 9. In a friction clutch, the combination of a driving element, a driven element, a casing -rixed toene element and embracing the other Y element, a member mounted vWithin and rotatable with said casing and`having a plu! rality of thrust seats of varying depth, a bell crank pivoted within the casing and having an arm adapted to engage saidthrust seats, the end of the arm adjacent the said thrust seats being-beveled at its forward edge, and lmeans for moving the said bell crank angularly with respect to the said member to move the said bell crank from lone seat to the Lnext,"the lsurface between the seats passin under the beveled edgebfthe 'arm ofthe ell crank.

10;"In a friction clutch, the combination of a driving'element, a driven element, a casing secured7 tosone element and embracing the otherelement, a member mounted within and'rotatable with said casing and having a plurality of thrust seats connected by'inclined surfaces in its face adjacent the rear wall of the casing, a 'bell crank having an armadapted to engage sai-d thrustseats, and vmeansjfor moving the saidbell crank angularlyH-with respect` to `the said member t' mo'vJ` the lsaid arm from` one` thrust seatto-r y the `next, the edge of thesaid arm vfv'vliiohqA passes over the inclined surface connectingV said seats being beveled to yfacilitate theI movement of the arm from one seat vto they'.

other.

. MARSHALL BECK. y

Witnesses:` l

C. W. Bone, A. w. Annes. 

